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US6895779B2 - Adsorption refrigerating device - Google Patents

Adsorption refrigerating device Download PDF

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Publication number
US6895779B2
US6895779B2 US10/416,446 US41644603A US6895779B2 US 6895779 B2 US6895779 B2 US 6895779B2 US 41644603 A US41644603 A US 41644603A US 6895779 B2 US6895779 B2 US 6895779B2
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US
United States
Prior art keywords
adsorbent
vapor
liquid
refrigerant liquid
cooling liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US10/416,446
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English (en)
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US20040035145A1 (en
Inventor
Pierre Jeuch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thermagen SA
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Thermagen SA
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Assigned to THERMAGEN reassignment THERMAGEN ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JEUCH, PIERRE
Publication of US20040035145A1 publication Critical patent/US20040035145A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B35/00—Boiler-absorbers, i.e. boilers usable for absorption or adsorption
    • F25B35/04—Boiler-absorbers, i.e. boilers usable for absorption or adsorption using a solid as sorbent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B17/00—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type
    • F25B17/08—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type the absorbent or adsorbent being a solid, e.g. salt
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62—Absorption based systems

Definitions

  • the present invention relates to a device for refrigeration by evaporation and adsorption, whose principle consists in evaporating a liquid under the effect of a depression sustained by adsorption of the vapors of said liquid. It is the evaporation of this refrigerant liquid contained in an evaporator (a chamber, cavity or the like) that prompts a cooling in the vicinity of the evaporator. Another chamber, containing adsorbent material, is generally connected to the evaporator.
  • the adsorption is accompanied by heat dissipation in the adsorbent leading to a rise in temperature which it is sought to limit by discharging a part of this heat.
  • the cyclical devices generally comprise adsorbents connected to heat exchangers which firstly discharge of the heat dissipated by the adsorbents during the adsorption reaction of the refrigerating liquid vapors and secondly heat these adsorbents to regenerate them.
  • the U.S. Pat. No. 4,759,191 proposes to limit the rise in temperature by the additionn to the adsorbents, of different materials, especially materials having a solid-liquid phase change between 30° C. and 70° C. To obtain a significant effect, it is necessary however to have a large quantity of solid-liquid phase-changing materials (about twice as much as the adsorbents).
  • This U.S. Pat. No. 4,759,191 also mentions the possibility of using a liquid-gas phase-changing material as well as adsorbent temperatures of up to 100° C. or even 110° C. However, the constraints related to the implementation of such a device are not analysed.
  • the aim of the present invention is to overcome the drawbacks of the prior art.
  • the most efficient way to limit the rise in the temperature of the adsorbent is to remove the calories by water evaporation, for the latent heat of water is very high (45KJ per mole, namely 18 g of water). However, for fast evaporation, the water should be brought to boiling point. This entails a potential risk of scalding injuries.
  • the present invention proposes to associate means with the adsorbent to bring down the temperature of the released vapor.
  • a heat exchanger containing a cooling liquid preferably liquid water
  • This heat exchanger has at least one aperture to the outside atmosphere constituted by one or more small holes that limit the flow rate of the water vapor that might escape. This hole or these holes furthermore give rise to an adiabatic expansion or pressure reduction of the pressurized water vapor so as to reduce its temperature when it escapes outwards.
  • the invention relates more particularly to an adsorption refrigeration device comprising an evaporator containing a refrigerant liquid that evaporates under the effect of a depression and an adsorbent capable of fixing the vapors of the refrigerant liquid, characterized in that the adsorbent is in contact with a heat exchanger containing a cooling liquid which evaporates during the heating of the adsorbent, said heat exchanger containing at least one aperture to the outside atmosphere constituted by at least one hole that limits the rate of flow of the vapor of the cooling liquid
  • the cooling liquid undergoes adiabatic expansion through said hole or holes so that its temperature is lowered when it escapes outwards.
  • the lowering of the temperature of the vapor is greater than or equal to 35° C.
  • the cooling liquid comprises water.
  • the adsorbent is a zeolith.
  • the refrigerant liquid is water.
  • the refrigerant liquid is an alcohol
  • the cooling liquid comprises an aromatic additive releasing a sensation of freshness.
  • FIG. 1 is a drawing of the device according to the invention in a single-use application
  • FIG. 2 is a diagrammatic view in longitudinal section of a portion A of the device according to the invention shown in FIG. 1 .
  • the device according to the invention is designed to be associated at least with one evaporator containing a refrigerant liquid L capable of evaporating under the effect of a depression.
  • the vapors V of this liquid L are adsorbed by an adsorbent 205 . This association is described with reference to FIG. 1 .
  • a block of adsorbents 205 is connected to an evaporator 2 constituted by an airtight cavity containing a refrigerant liquid L.
  • a communicating device 50 consisting of a delidding means or a valve for example, is used to activate and then maintain the adsorption of the vapors V of the refrigerant liquid L.
  • the refrigerant liquid L is preferably water but it may also be an alcohol (such as methanol or ethanol).
  • the adsorbent 205 is preferably a zeolite.
  • it is a zeolite 13x or zeolite 4A made up of fine powder (with a grain size of some microns to some tens of microns) mixed with a binder (a clay, for example kaolinite), and water to give a thick paste.
  • a binder a clay, for example kaolinite
  • This paste is then shaped, dried and cooked under vacuum at about 350° to eliminate all the water bound in the zeolite.
  • the adsorbent is then kept in an vacuum-tight state.
  • the adsorption of the vapors V of the refrigerant liquid L prompts the heating of the adsorbent 205 , thus limiting its efficiency.
  • the most efficient way to discharge the calories released by the adsorbent 205 is by water evaporation. However, for fast evaporation, the water must be carried to boiling point. This raises a potential risk of scalding.
  • the present invention proposes means to bring about a lowering of the temperature of the released vapor.
  • a heat exchanger 220 containing a cooling liquid L′ is placed in thermal contact with the adsorbent 205 .
  • This heat exchanger 220 has at least one aperture 275 into the outer atmosphere constituted by one or more small holes that limit the flow rate of the vapor V′ that can escape. This hole or these holes furthermore prompt an adiabatic pressure reduction of the vapor V′ under pressure so as to lower the temperature when it escapes outwards.
  • the assembly constituted by the adsorbent 205 and the heat exchanger 220 is closed by a lid 270 (made of metal such as aluminium for example).
  • This lid 270 may have one or more holes 275 whose diameter is limited in order to provide for an adiabatic pressure reduction of the vapor V′ of the cooling liquid L′.
  • the cooling liquid L′ comprises water.
  • an additive to the cooling liquid L′ which adds an artificial aroma to the heated vapors V′ released outwards.
  • This artificial freshness based on eucalyptus or watermelon for example, advantageously produces a sensation of freshness.
  • the heat released by the adsorbent 205 prompts the evaporation of the cooling liquid L′ and an increase in the pressure of vapor V′ inside the heat exchange 220 .
  • the pressurized vapor V′ escapes through the small-diameter hole or holes 275 , it undergoes adiabatic expansion or pressure reduction which lowers its temperature.
  • the extent of the drop in temperature of the vapor V′ escaping outwards is all the greater as the flow rate of vapor V′ is high. This is because, in this case, the pressure in the exchanger 220 is high and the pressure reduction is great.
  • the table of numerical values here below illustrates the lowering of the temperature of the vapor V′ discharged into the outside atmosphere during the working of the device.
  • the temperature of the vapor V′ in the exchanger 220 rises to 120° C. but, after pressure reduction through the hole or holes 275 , the temperature of the discharged vapor is no more than about 55° C.
  • This overpressure may be achieved, for example, by a flow rate of vapor V′ of 0.1 g/sec through a hole with a section of 0.4 mm 2 .
  • T 2 T 1 ( P 2 P 1 ) ⁇ - 1 ⁇
  • pairs (T 1 ,P 1 ) and (T 2 ,P 2 ) are the temperatures and pressures before and after pressure reduction.
  • the following table illustrates the cooling capacity obtained as a function of the overpressure caused.
  • the flow rates of the table correspond to a hole with a diameter of 1 mm (0.8 mm2) (Flowmaster code).
  • the flow rate of vapor V′ is proportional to the surface area of the hole, and the cooling capacity is proportional to the flow rate (latent heat of vaporization of water).

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
US10/416,446 2000-11-13 2001-11-09 Adsorption refrigerating device Expired - Fee Related US6895779B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0014559A FR2816698B1 (fr) 2000-11-13 2000-11-13 Dispositif de refrigeration par adsorption
FR00/14559 2000-11-13
PCT/FR2001/003479 WO2002039035A1 (fr) 2000-11-13 2001-11-09 Dispositif de refrigeration par adsorption

Publications (2)

Publication Number Publication Date
US20040035145A1 US20040035145A1 (en) 2004-02-26
US6895779B2 true US6895779B2 (en) 2005-05-24

Family

ID=8856369

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/416,446 Expired - Fee Related US6895779B2 (en) 2000-11-13 2001-11-09 Adsorption refrigerating device

Country Status (7)

Country Link
US (1) US6895779B2 (fr)
EP (1) EP1334320B1 (fr)
AT (1) ATE297536T1 (fr)
AU (1) AU2002218343A1 (fr)
DE (1) DE60111414T2 (fr)
FR (1) FR2816698B1 (fr)
WO (1) WO2002039035A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110048920A1 (en) * 2009-08-28 2011-03-03 Industrial Idea Partners, Inc. Adsorbent - Adsorbate Desalination Unit and Method
US8597471B2 (en) 2010-08-19 2013-12-03 Industrial Idea Partners, Inc. Heat driven concentrator with alternate condensers

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2281441T3 (es) * 2000-07-06 2007-10-01 Thermagen S.A. Dispositivo de refrigeracion por absorcion.

Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR29877E (fr) 1923-02-13 1925-11-10 Perfectionnements dans la fabrication des briques en terre franche
FR948292A (fr) 1947-06-23 1949-07-27 Réfrigérateur populaire
US4367079A (en) 1979-04-30 1983-01-04 Wallsten Hans Ivar Unit containing sorbent material
US4581049A (en) 1983-07-08 1986-04-08 Schiedel Gmbh & Co. Solid absorber apparatus for a cyclic absorption process
US4610148A (en) * 1985-05-03 1986-09-09 Shelton Samuel V Solid adsorbent heat pump system
US4637218A (en) 1974-11-04 1987-01-20 Tchernev Dimiter I Heat pump energized by low-grade heat source
US4674563A (en) 1983-12-30 1987-06-23 Maier Laxhuber Peter Zeolite blanks with a high heat conductivity and process for making the same
US4759191A (en) 1987-07-07 1988-07-26 Liquid Co2 Engineering, Inc. Miniaturized cooling device and method of use
US4881376A (en) * 1987-08-28 1989-11-21 Nishiyodo Air Conditioner Co., Ltd. Adsorption refrigeration system
US4928495A (en) 1989-06-22 1990-05-29 Israel Siegel Self cooling and self heating container
FR2679633A1 (fr) 1991-07-26 1993-01-29 Faiveley Sa Installation pour produire du froid par reaction solide/gaz, le reacteur comportant des moyens de refroidissement.
DE9404126U1 (de) 1994-03-11 1994-06-30 Färber, Wilfried, 77704 Oberkirch Vorrichtung zur Kälteerzeugung und Wärmespeicherung über Feststoffadsorption mittels Wasserdampf und heißen Gasen
US5503222A (en) * 1989-07-28 1996-04-02 Uop Carousel heat exchanger for sorption cooling process
US5661986A (en) 1993-04-07 1997-09-02 Sofrigam Chemical reactor, refrigerating machine and container provided therewith and reagent cartridge therefor
US5768908A (en) 1995-10-05 1998-06-23 Nippondenso Co., Ltd. Adsorption type air conditioning using adsorbent and liquid refrigerant
DE19730697A1 (de) 1997-07-17 1999-01-21 Buderus Heiztechnik Gmbh Adsorptionswärmepumpe
WO1999049964A1 (fr) 1998-03-31 1999-10-07 Grace Gmbh & Co. Kg Corps faconne en zeolithe, procede de production et d'utilisation associe
DE19818807A1 (de) 1998-04-27 1999-10-28 Behr Gmbh & Co Sorptionsvorrichtung, insbesondere zur Klimatisierung von Fahrzeuginnenräumen
US6041617A (en) * 1993-11-29 2000-03-28 Mayekawa Mfg. Co., Ltd. Adsorption type cooling apparatus, method of controlling cold output of same, and fin type adsorbent heat exchanger for use in same
WO2000031206A1 (fr) 1998-11-24 2000-06-02 Suncool Ab Pompe a chaleur chimique utilisant une substance solide
FR2811412A1 (fr) 2000-07-06 2002-01-11 Thermagen Dispositif de refrigeration par adsorption

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1029877A (fr) * 1950-12-19 1953-06-08 S E R A M Réfrigérateur à absorption

Patent Citations (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR29877E (fr) 1923-02-13 1925-11-10 Perfectionnements dans la fabrication des briques en terre franche
FR948292A (fr) 1947-06-23 1949-07-27 Réfrigérateur populaire
US4637218A (en) 1974-11-04 1987-01-20 Tchernev Dimiter I Heat pump energized by low-grade heat source
US4367079A (en) 1979-04-30 1983-01-04 Wallsten Hans Ivar Unit containing sorbent material
US4581049A (en) 1983-07-08 1986-04-08 Schiedel Gmbh & Co. Solid absorber apparatus for a cyclic absorption process
US4674563A (en) 1983-12-30 1987-06-23 Maier Laxhuber Peter Zeolite blanks with a high heat conductivity and process for making the same
US4610148A (en) * 1985-05-03 1986-09-09 Shelton Samuel V Solid adsorbent heat pump system
US4759191A (en) 1987-07-07 1988-07-26 Liquid Co2 Engineering, Inc. Miniaturized cooling device and method of use
US4881376A (en) * 1987-08-28 1989-11-21 Nishiyodo Air Conditioner Co., Ltd. Adsorption refrigeration system
US4928495A (en) 1989-06-22 1990-05-29 Israel Siegel Self cooling and self heating container
US5503222A (en) * 1989-07-28 1996-04-02 Uop Carousel heat exchanger for sorption cooling process
FR2679633A1 (fr) 1991-07-26 1993-01-29 Faiveley Sa Installation pour produire du froid par reaction solide/gaz, le reacteur comportant des moyens de refroidissement.
US5335519A (en) 1991-07-26 1994-08-09 Societe Nationale Elf Aquitaine Plant for producing cold by solid/gas reaction, reactor comprising means of cooling
US5661986A (en) 1993-04-07 1997-09-02 Sofrigam Chemical reactor, refrigerating machine and container provided therewith and reagent cartridge therefor
US6041617A (en) * 1993-11-29 2000-03-28 Mayekawa Mfg. Co., Ltd. Adsorption type cooling apparatus, method of controlling cold output of same, and fin type adsorbent heat exchanger for use in same
DE9404126U1 (de) 1994-03-11 1994-06-30 Färber, Wilfried, 77704 Oberkirch Vorrichtung zur Kälteerzeugung und Wärmespeicherung über Feststoffadsorption mittels Wasserdampf und heißen Gasen
US5768908A (en) 1995-10-05 1998-06-23 Nippondenso Co., Ltd. Adsorption type air conditioning using adsorbent and liquid refrigerant
DE19730697A1 (de) 1997-07-17 1999-01-21 Buderus Heiztechnik Gmbh Adsorptionswärmepumpe
WO1999049964A1 (fr) 1998-03-31 1999-10-07 Grace Gmbh & Co. Kg Corps faconne en zeolithe, procede de production et d'utilisation associe
DE19818807A1 (de) 1998-04-27 1999-10-28 Behr Gmbh & Co Sorptionsvorrichtung, insbesondere zur Klimatisierung von Fahrzeuginnenräumen
WO2000031206A1 (fr) 1998-11-24 2000-06-02 Suncool Ab Pompe a chaleur chimique utilisant une substance solide
FR2811412A1 (fr) 2000-07-06 2002-01-11 Thermagen Dispositif de refrigeration par adsorption

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110048920A1 (en) * 2009-08-28 2011-03-03 Industrial Idea Partners, Inc. Adsorbent - Adsorbate Desalination Unit and Method
US8597471B2 (en) 2010-08-19 2013-12-03 Industrial Idea Partners, Inc. Heat driven concentrator with alternate condensers

Also Published As

Publication number Publication date
FR2816698B1 (fr) 2004-05-28
DE60111414T2 (de) 2006-05-18
FR2816698A1 (fr) 2002-05-17
WO2002039035A1 (fr) 2002-05-16
DE60111414D1 (de) 2005-07-14
AU2002218343A1 (en) 2002-05-21
EP1334320A1 (fr) 2003-08-13
EP1334320B1 (fr) 2005-06-08
US20040035145A1 (en) 2004-02-26
ATE297536T1 (de) 2005-06-15

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